Saving value as default value


 
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# 1  
Old 07-20-2009
Saving value as default value

Hi everybody,

I have a prog who is filtering an image with a lot of parameters. The user has two choices :

-Running the script with default values

-Running the script manually (i.e choosing himself the parameters values)

What I would like to do is that if he wants, the users can keep the values he chose as new default values.
WIth stg like a question : "Do you want to keep those values as default? [Y/N]"


And the problem is that I have no idea how to do that....

So if anyone could help me, i'll be very grateful!

Thanks
# 2  
Old 07-20-2009
Quote:
Originally Posted by Moumou
What I would like to do is that if he wants, the users can keep the values he chose as new default values.
WIth stg like a question : "Do you want to keep those values as default? [Y/N]"


And the problem is that I have no idea how to do that....
Are you stuck on how to accept the user's option or how to save the default parameters per user ?

To accept the user's option see one of these
https://www.unix.com/unix-dummies-que...ser-input.html
https://www.unix.com/shell-programmin...ser-input.html

If you are wondering how to save the parameters, then accept the params for the first time and then dump them onto a file with <key,value> pair like
RUN_ALGO=YES
TRANSFORM=NO et al.
Later, in the next run, look for this file and read the entries.
# 3  
Old 07-20-2009
I was stuck to save values.
Thx for your answers!
# 4  
Old 07-20-2009
Using personal setup file ex. mysetup.txt. This works every posix-sh (ksh, bash, ...).
Code:
#!/bin/ksh
#mysetup
#use:
#mysetup -
#- use mysetup using my own defaut setup
#or
#mysetup
#- ask values and save using previous values as default

set1="sysdefault1"
set2="sysdefault2"
# always use mysetup as default if there is
[ -f $HOME/mysetup.txt ] && . $HOME/mysetup.txt

savedef()
{
   > $HOME/mysetup.txt
   # which variables to save
   for var in set1 set2
   do
        eval echo "\"$var='\$$var'\""  >> $HOME/mysetup.txt
   done
}

askvalues()
{
echo -n "set1 [$set1]:"
read Xset1
[ "$Xset1" != "" ] && set1="$Xset1"
echo -n "set2 [$set2]:"
read Xset2
[ "$Xset2" != "" ] && set2="$Xset2"
savedef
}

#######MAIN####
[ "$1" != "-" ] && askvalues

# 5  
Old 07-20-2009
thx a lot for your answer Smilie
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